<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <!-- 添加角色按钮 -->
      <el-row>
        <el-col>
          <el-button type="primary" @click="showAddRoleDialog"
            >添加角色</el-button
          >
        </el-col>
      </el-row>

      <el-table :data="roleList" border stripe>
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom', i1 === 0 ? 'bdtop' : '', 'vcenter']"
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
            >
              <el-col :span="5">
                <el-tag
                  closable
                  @close="removeRightById(scope.row, item1.id)"
                  >{{ item1.authName }}</el-tag
                >
                <i class="el-icon-caret-right"></i>
              </el-col>
              <el-col :span="19">
                <el-row
                  :class="[i2 === 0 ? '' : 'bdtop', 'vcenter']"
                  v-for="(item2, i2) in item1.children"
                  :key="item2.id"
                >
                  <el-col :span="6">
                    <el-tag
                      closable
                      @close="removeRightById(scope.row, item2.id)"
                      type="success"
                      >{{ item2.authName }}</el-tag
                    >
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag
                      closable
                      @close="removeRightById(scope.row, item3.id)"
                      type="warning"
                      v-for="item3 in item2.children"
                      :key="item3.id"
                      >{{ item3.authName }}</el-tag
                    >
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditRoleDialog(scope.row.id)"
              >编辑</el-button
            >
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteRole(scope.row.id)"
              >删除</el-button
            >
            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>

    <!-- 分配权限对话框 -->
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close="setRightDialogClosed"
    >
      <el-tree
        ref="treeRef"
        :data="rightslist"
        :props="treeProps"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="defKeys"
      ></el-tree>
      <span slot="footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 添加角色对话框 -->
    <el-dialog
      title="添加角色"
      :visible.sync="addRoleDialogVisible"
      width="30%"
      @close="addRoleDialogClosed"
    >
      <el-form
        :model="addRoleForm"
        :rules="addRoleFormRule"
        ref="addRoleFormRef"
        label-width="100px"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="addRoleForm.roleName"></el-input>
        </el-form-item>

        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="addRoleForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="addRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addRole">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 编辑角色对话框 -->
    <el-dialog
      title="编辑角色"
      :visible.sync="editRoleDialogVisible"
      width="30%"
      @close="editRoleDialogClosed"
    >
      <el-form
        :model="editRoleFormPara"
        :rules="editRoleFormRule"
        ref="editRoleFormRef"
        label-width="100px"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="editRoleFormPara.roleName"></el-input>
        </el-form-item>

        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="editRoleFormPara.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="editRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      treeProps: {
        label: "authName",
        chidlren: "children",
      },
      roleList: [],
      setRightDialogVisible: false,
      rightslist: [],
      defKeys: [],
      roleId: "",
      addRoleDialogVisible: false,
      addRoleForm: {
        roleName: "",
        roleDesc: "",
      },
      addRoleFormRule: {
        roleName: [
          { required: true, message: "请输入角色名称", trigger: "blur" },
        ],
      },
      editRoleFormPara: {
        id: "",
        roleName: "",
        roleDesc: "",
      },
      editRoleDialogVisible: false,
      editRoleFormRule: {
        roleName: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getRolesList();
  },
  methods: {
    editRoleDialogClosed() {
      this.$refs.editRoleFormRef.resetFields();
    },
    async getRolesList() {
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败！");
      }
      this.roleList = res.data;
    },
    removeRightById(role, rightId) {
      console.log(role.id, rightId);
      this.$confirm("是否删除该权限?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(async () => {
          const { data: res } = await this.$http.delete(
            `roles/${role.id}/rights/${rightId}`
          );
          if (res.meta.status !== 200) {
            return this.$message.error("删除权限失败！");
          }
          this.$message.success("删除权限成功！");
          role.children = res.data;
        })
        .catch(() => {
          return this.$message.info("取消了删除");
        });
    },
    async showSetRightDialog(role) {
      this.roleId = role.id;
      const { data: res } = await this.$http.get("rights/tree");
      if (res.meta.status !== 200) {
        return this.$message.error("获取权限数据失败！");
      }
      this.rightslist = res.data;
      this.getLeafKeys(role, this.defKeys);
      this.setRightDialogVisible = true;
    },
    getLeafKeys(node, arr) {
      if (!node.children) {
        return arr.push(node.id);
      }

      node.children.forEach((item) => this.getLeafKeys(item, arr));
    },
    setRightDialogClosed() {
      this.defKeys = [];
    },
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys(),
      ];
      const idStr = keys.join(",");

      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      );

      if (res.meta.status !== 200) {
        return this.$message.error("分配权限失败！");
      }

      this.$message.success("分配权限成功！");
      this.getRolesList();
      this.setRightDialogVisible = false;
    },
    addRoleDialogClosed() {
      this.$refs.addRoleFormRef.resetFields();
    },
    showAddRoleDialog() {
      this.addRoleDialogVisible = true;
    },
    async addRole() {
      const res = await this.$http.post("roles", this.addRoleForm);
      console.log(res);
      if (res.status !== 200) {
        this.$message.error("添加角色失败！");
      } else {
        this.$message.success("添加角色成功！");
        this.getRolesList();
      }
      this.addRoleDialogVisible = false;
    },
    async editRole() {
      const res = await this.$http.put("roles/" + this.editRoleFormPara.id, {
        roleName: this.editRoleFormPara.roleName,
        roleDesc: this.editRoleFormPara.roleDesc,
      });
      console.log(res);
      if (res.data.meta.status !== 200) {
        this.$message.error("编辑角色失败！");
      } else {
        this.$message.success("编辑角色成功！");
        this.getRolesList();
      }
      this.editRoleDialogVisible = false;
      return;
    },
    showEditRoleDialog(id) {
      this.editRoleFormPara.id = id;
      this.editRoleDialogVisible = true;
    },
    deleteRole(id) {
      this.$confirm("此操作将删除该角色, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(async () => {
          const { data: res } = await this.$http.delete("roles/" + id);
          console.log(res);
          if (res.meta.status !== 200) {
            this.$message.error("删除角色失败！");
          } else {
            this.$message.success("删除角色成功！");
            this.getRolesList();
          }
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除",
          });
        });
    },
  },
};
</script>

<style lang="less" scoped>
.el-tag {
  margin: 7px;
}

.bdtop {
  border-top: 1px solid #eee;
}

.bdbottom {
  border-bottom: 1px solid #eee;
}

.vcenter {
  display: flex;
  align-items: center;
}
</style>
